Perhaps you should try some spelling variations:
applications 6.1 » applications 3.1, applications 1, applications _
competition cost » competition case, competition co, competition foster
development case » development china
cost hydropower » less hydropower, non hydropower, note hydropower
gaps through » pass through, sales through, banks through
6.1 gaps » 6.3 gaps, 6.1 glass, 6.1 goals
case art » case part, case heart, case start

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology _ applications 6.1 gaps through competition cost hydropower development case art.*.